Simplified Radical Form with square and cubed roots

I just got a new Ti-nspire Cx CAS calculator and I am having trouble with being able to express a Radical in simplified form when there are exponents and variables of x and y. My problem is that this calculator will not show the simplified form correctly. I have taken others advice in setting the calculator to exact mode but I suspect that the other settings in this same area are wrong.

Staff: Mentor

I just got a new Ti-nspire Cx CAS calculator and I am having trouble with being able to express a Radical in simplified form when there are exponents and variables of x and y. My problem is that this calculator will not show the simplified form correctly. I have taken others advice in setting the calculator to exact mode but I suspect that the other settings in this same area are wrong.

Thanks for the reply.
The problem that I'm working with is actually √(64x^5 y) and the correct answer is 8x^2√xy
I realize that 8(8) is 64 and that I have to borrow one from five and show the square root of four, which is two, leaving a remainder of one, thus the reason for 8x^2√xy but my calculator will not show the correct answer.

Sorry about the confusion. I am new at this calculator. Can you tell me why the Ti-nspire Cx CAS will not simplify it showing the correct answer?

I realize that 8(8) is 64 and that I have to borrow one from five and show the square root of four, which is two, leaving a remainder of one, thus the reason for 8x^2√xy but my calculator will not show the correct answer.

I'm guessing that you might not be using parentheses when you enter the expression. I don't have one of these calculators, so I can't say for sure.

I tried it with parentheses and it produces 8√x^5y and it should produce 8x^2√xy
I wish I could figure this out. It can't be that hard. If anyone reads this and knows how to get the Ti-nspire CX CAS to do this, please let me know. Thanks